information, quantities and communcation Flashcards
fundamentals of construction.
dwg stands for
Drawing
DPC stands for
Damp proof course
RWP stands for
Rain water pipe
BSUB stands for
British standard universal beam
CE stands for
Clean eye
hdbd stands for
Hardboard.
VP stands for
Vent pipe
ct stands for
cement
insul stands for
insulation
T & G means
Tongue and Groove
GP means
Glazed pipe
The main type of projection used in construction drawings?
Orthographic or pictorial projections.
What is orthographic projection?
method of drawing showing plans, elevations and sections. Where each view is at right angles to the face.
Explain what is first angle projection.
It is used for building drawings where in relation to front view the other views are drawn in opposite . So as follows: view from above is drawn below front view, view from below is drawn above front view, view to left is drawn to right, view to right is drawn to left. rear view is drawn to extreme right. Sectional view can be drawn either to left or right where space permits.
What is third angle projection
This form of orthographic projection used for engineering drawings. in relation to front elevation the other views are arranged as follows.
View from above is drawn above. View from below is drawn below, the view from left is drawn left, view right drawn right, view from rear drawn in extreme rear. Sectional view may be drawn left or right where space permits.